oj.uz

Submission #1094136

# Submission time Handle Problem Language Result Execution time Memory
1094136 2024-09-28T15:15:27 Z thangdz2k7 Power Plant (JOI20_power) C++17
100 / 100
 91 ms 28880 KB 
// author : thembululquaUwU
// 3.9.2024

#include <bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
#define endl '\n'

using namespace std;
using ll = long long;
using ii = pair <int, int>;
using vi = vector <int>;

const int N = 2e5 + 5;
const int mod = 1e9 + 7;

void maxl(auto &a, auto b) {a = max(a, b);}
void minl(auto &a, auto b) {a = min(a, b);}

int n, dp[N], ans = 0;
string s;
vi adj[N];

void dfs(int u = 1, int p = 0){
    dp[u] = 0;
    int mx = 0;
    for (int v : adj[u]) if (v ^ p){
        dfs(v, u); dp[u] += dp[v]; maxl(mx, dp[v]);
    }
    if (s[u] == '1') {
        dp[u] = max(1, dp[u] - 1);
        maxl(ans, mx + 1);
    }
    maxl(ans, dp[u]);
}

void solve(){
    cin >> n;
    for (int i = 1, u, v; i < n; ++ i){
        cin >> u >> v;
        adj[u].pb(v); adj[v].pb(u);
    }
    cin >> s; s = ' ' + s;
    dfs(); cout << ans;
}

int main(){
    if (fopen("pqh.inp", "r")){
        freopen("pqh.inp", "r", stdin);
        freopen("pqh.out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int t = 1; // cin >> t;
    while (t --) solve();
    return 0;
}

Compilation message

power.cpp:18:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   18 | void maxl(auto &a, auto b) {a = max(a, b);}
      |           ^~~~
power.cpp:18:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   18 | void maxl(auto &a, auto b) {a = max(a, b);}
      |                    ^~~~
power.cpp:19:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void minl(auto &a, auto b) {a = min(a, b);}
      |           ^~~~
power.cpp:19:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void minl(auto &a, auto b) {a = min(a, b);}
      |                    ^~~~
power.cpp: In function 'int main()':
power.cpp:50:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |         freopen("pqh.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
power.cpp:51:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |         freopen("pqh.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 2 ms 5156 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 5156 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 3 ms 4952 KB Output is correct
7 Correct 2 ms 5040 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 3 ms 4956 KB Output is correct
12 Correct 2 ms 5160 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 3 ms 4956 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 2 ms 4952 KB Output is correct
18 Correct 3 ms 4960 KB Output is correct
19 Correct 2 ms 5208 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 3 ms 4960 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 2 ms 5156 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 5156 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 3 ms 4952 KB Output is correct
7 Correct 2 ms 5040 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 3 ms 4956 KB Output is correct
12 Correct 2 ms 5160 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 3 ms 4956 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 2 ms 4952 KB Output is correct
18 Correct 3 ms 4960 KB Output is correct
19 Correct 2 ms 5208 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 3 ms 4960 KB Output is correct
22 Correct 3 ms 5208 KB Output is correct
23 Correct 3 ms 5208 KB Output is correct
24 Correct 3 ms 5212 KB Output is correct
25 Correct 3 ms 5216 KB Output is correct
26 Correct 2 ms 5216 KB Output is correct
27 Correct 2 ms 5212 KB Output is correct
28 Correct 2 ms 5220 KB Output is correct
29 Correct 3 ms 5216 KB Output is correct
30 Correct 3 ms 5220 KB Output is correct
31 Correct 4 ms 5220 KB Output is correct
32 Correct 2 ms 5212 KB Output is correct
33 Correct 2 ms 5220 KB Output is correct
34 Correct 3 ms 5220 KB Output is correct
35 Correct 3 ms 5252 KB Output is correct
36 Correct 3 ms 5212 KB Output is correct
37 Correct 3 ms 5212 KB Output is correct
38 Correct 2 ms 5212 KB Output is correct
39 Correct 3 ms 5472 KB Output is correct
40 Correct 3 ms 5216 KB Output is correct
41 Correct 3 ms 5208 KB Output is correct
42 Correct 2 ms 5212 KB Output is correct
43 Correct 3 ms 5212 KB Output is correct
44 Correct 2 ms 5172 KB Output is correct
45 Correct 3 ms 5212 KB Output is correct
46 Correct 3 ms 5212 KB Output is correct
47 Correct 4 ms 5284 KB Output is correct
48 Correct 3 ms 5212 KB Output is correct
49 Correct 2 ms 5212 KB Output is correct
50 Correct 2 ms 5212 KB Output is correct
51 Correct 3 ms 5212 KB Output is correct
52 Correct 3 ms 5208 KB Output is correct
53 Correct 3 ms 5212 KB Output is correct
54 Correct 3 ms 5212 KB Output is correct
55 Correct 2 ms 5212 KB Output is correct
56 Correct 2 ms 5212 KB Output is correct
57 Correct 3 ms 5212 KB Output is correct
58 Correct 2 ms 5244 KB Output is correct
59 Correct 3 ms 5212 KB Output is correct
60 Correct 2 ms 5212 KB Output is correct
61 Correct 2 ms 5196 KB Output is correct
62 Correct 3 ms 5212 KB Output is correct
63 Correct 3 ms 5212 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 2 ms 5156 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 5156 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 3 ms 4952 KB Output is correct
7 Correct 2 ms 5040 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 3 ms 4956 KB Output is correct
12 Correct 2 ms 5160 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 3 ms 4956 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 2 ms 4952 KB Output is correct
18 Correct 3 ms 4960 KB Output is correct
19 Correct 2 ms 5208 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 3 ms 4960 KB Output is correct
22 Correct 3 ms 5208 KB Output is correct
23 Correct 3 ms 5208 KB Output is correct
24 Correct 3 ms 5212 KB Output is correct
25 Correct 3 ms 5216 KB Output is correct
26 Correct 2 ms 5216 KB Output is correct
27 Correct 2 ms 5212 KB Output is correct
28 Correct 2 ms 5220 KB Output is correct
29 Correct 3 ms 5216 KB Output is correct
30 Correct 3 ms 5220 KB Output is correct
31 Correct 4 ms 5220 KB Output is correct
32 Correct 2 ms 5212 KB Output is correct
33 Correct 2 ms 5220 KB Output is correct
34 Correct 3 ms 5220 KB Output is correct
35 Correct 3 ms 5252 KB Output is correct
36 Correct 3 ms 5212 KB Output is correct
37 Correct 3 ms 5212 KB Output is correct
38 Correct 2 ms 5212 KB Output is correct
39 Correct 3 ms 5472 KB Output is correct
40 Correct 3 ms 5216 KB Output is correct
41 Correct 3 ms 5208 KB Output is correct
42 Correct 2 ms 5212 KB Output is correct
43 Correct 3 ms 5212 KB Output is correct
44 Correct 2 ms 5172 KB Output is correct
45 Correct 3 ms 5212 KB Output is correct
46 Correct 3 ms 5212 KB Output is correct
47 Correct 4 ms 5284 KB Output is correct
48 Correct 3 ms 5212 KB Output is correct
49 Correct 2 ms 5212 KB Output is correct
50 Correct 2 ms 5212 KB Output is correct
51 Correct 3 ms 5212 KB Output is correct
52 Correct 3 ms 5208 KB Output is correct
53 Correct 3 ms 5212 KB Output is correct
54 Correct 3 ms 5212 KB Output is correct
55 Correct 2 ms 5212 KB Output is correct
56 Correct 2 ms 5212 KB Output is correct
57 Correct 3 ms 5212 KB Output is correct
58 Correct 2 ms 5244 KB Output is correct
59 Correct 3 ms 5212 KB Output is correct
60 Correct 2 ms 5212 KB Output is correct
61 Correct 2 ms 5196 KB Output is correct
62 Correct 3 ms 5212 KB Output is correct
63 Correct 3 ms 5212 KB Output is correct
64 Correct 62 ms 15316 KB Output is correct
65 Correct 60 ms 15312 KB Output is correct
66 Correct 58 ms 15296 KB Output is correct
67 Correct 62 ms 15308 KB Output is correct
68 Correct 57 ms 15308 KB Output is correct
69 Correct 59 ms 15308 KB Output is correct
70 Correct 62 ms 15324 KB Output is correct
71 Correct 59 ms 15328 KB Output is correct
72 Correct 62 ms 15340 KB Output is correct
73 Correct 78 ms 27852 KB Output is correct
74 Correct 89 ms 27836 KB Output is correct
75 Correct 60 ms 15052 KB Output is correct
76 Correct 57 ms 15052 KB Output is correct
77 Correct 63 ms 15232 KB Output is correct
78 Correct 60 ms 15052 KB Output is correct
79 Correct 64 ms 15060 KB Output is correct
80 Correct 59 ms 15052 KB Output is correct
81 Correct 60 ms 15556 KB Output is correct
82 Correct 56 ms 15244 KB Output is correct
83 Correct 72 ms 20688 KB Output is correct
84 Correct 69 ms 22492 KB Output is correct
85 Correct 70 ms 22164 KB Output is correct
86 Correct 69 ms 16616 KB Output is correct
87 Correct 61 ms 16072 KB Output is correct
88 Correct 68 ms 16392 KB Output is correct
89 Correct 58 ms 16348 KB Output is correct
90 Correct 62 ms 16172 KB Output is correct
91 Correct 91 ms 16504 KB Output is correct
92 Correct 59 ms 16828 KB Output is correct
93 Correct 72 ms 19104 KB Output is correct
94 Correct 61 ms 20936 KB Output is correct
95 Correct 56 ms 19588 KB Output is correct
96 Correct 59 ms 17824 KB Output is correct
97 Correct 56 ms 16312 KB Output is correct
98 Correct 55 ms 15872 KB Output is correct
99 Correct 67 ms 15564 KB Output is correct
100 Correct 61 ms 18788 KB Output is correct
101 Correct 58 ms 16708 KB Output is correct
102 Correct 61 ms 16028 KB Output is correct
103 Correct 63 ms 15832 KB Output is correct
104 Correct 46 ms 16032 KB Output is correct
105 Correct 66 ms 24528 KB Output is correct
106 Correct 44 ms 16068 KB Output is correct
107 Correct 46 ms 16068 KB Output is correct
108 Correct 71 ms 28572 KB Output is correct
109 Correct 45 ms 16072 KB Output is correct
110 Correct 74 ms 28880 KB Output is correct
111 Correct 61 ms 15040 KB Output is correct